How does Jim Gordon in the Dark Knight come back to life?

Jim Gordon doesn't come back to life in The Dark Knight. He survives the movie.

In the film, Gordon is indeed targeted by the Joker, who attempts to frame him for the crimes of Harvey Dent. However, Batman intervenes and rescues Gordon, allowing him to clear his name and expose the Joker's true intentions.

While the Joker's actions put Gordon in danger, he ultimately survives the ordeal and continues his fight for justice in Gotham City.